/*
 * Copyright (c) 2000 jPOS.org.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *    "This product includes software developed by the jPOS project 
 *    (http://www.jpos.org/)". Alternately, this acknowledgment may 
 *    appear in the software itself, if and wherever such third-party 
 *    acknowledgments normally appear.
 *
 * 4. The names "jPOS" and "jPOS.org" must not be used to endorse 
 *    or promote products derived from this software without prior 
 *    written permission. For written permission, please contact 
 *    license@jpos.org.
 *
 * 5. Products derived from this software may not be called "jPOS",
 *    nor may "jPOS" appear in their name, without prior written
 *    permission of the jPOS project.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  
 * IN NO EVENT SHALL THE JPOS PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR 
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the jPOS Project.  For more
 * information please see <http://www.jpos.org/>.
 */

package com.nasoft.core;

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.List;
import java.util.Properties;

/**
 * @author apr@cs.com.uy
 * @version $Id: SimpleConfiguration.java,v 1.10 2003/10/13 10:46:15 apr Exp $
 * @since
 */
public class SimpleConfiguration implements Configuration
{
  private Properties props;

  public SimpleConfiguration()
  {
    props = new Properties();
  }

  public SimpleConfiguration(Properties props)
  {
    this.props = props;
  }

  public SimpleConfiguration(String filename) throws FileNotFoundException,
      IOException
  {
    props = new Properties();
    load(filename);
  }

  synchronized public String get(String name, String def)
  {
    Object obj = props.get(name);
    if (obj instanceof List)
    {
      List l = (List) obj;
      obj = (l.size() > 0) ? l.get(0) : null;
    }
    return (obj instanceof String) ? ((String) obj) : def;
  }

  synchronized public String[] getAll(String name)
  {
    String[] ret;
    Object obj = props.get(name);
    if (obj instanceof String[])
    {
      ret = (String[]) obj;
    } else if (obj instanceof String)
    {
      ret = new String[1];
      ret[0] = (String) obj;
    } else
      ret = new String[0];

    return ret;
  }

  synchronized public String get(String name)
  {
    return get(name, "");
  }

  synchronized public int getInt(String name)
  {
    return Integer.parseInt(props.getProperty(name, "0").trim());
  }

  synchronized public int getInt(String name, int def)
  {
    return Integer.parseInt(props.getProperty(name, Integer.toString(def))
        .trim());
  }

  synchronized public long getLong(String name)
  {
    return Long.parseLong(props.getProperty(name, "0").trim());
  }

  synchronized public long getLong(String name, long def)
  {
    return Long.parseLong(props.getProperty(name, Long.toString(def)).trim());
  }

  synchronized public double getDouble(String name)
  {
    return Double.valueOf(props.getProperty(name, "0.00").trim()).doubleValue();
  }

  synchronized public double getDouble(String name, double def)
  {
    return Double.valueOf(props.getProperty(name, Double.toString(def)).trim())
        .doubleValue();
  }

  public boolean getBoolean(String name)
  {
    String v = get(name, "false").trim();
    return v.equalsIgnoreCase("true") || v.equalsIgnoreCase("yes");
  }

  public boolean getBoolean(String name, boolean def)
  {
    String v = get(name);
    return v.length() == 0 ? def : (v.equalsIgnoreCase("true") || v
        .equalsIgnoreCase("yes"));
  }

  synchronized public void load(String filename) throws FileNotFoundException,
      IOException
  {
    FileInputStream fis = new FileInputStream(filename);
    props.load(new BufferedInputStream(fis));
    fis.close();
  }
}
